​A skill best left to the professionals, This is crucial if the instrument has been played or not, the piano requires regular alterations to perfectly reference the correct pitch. Pianos are string instruments that must be tuned regularly. When tuning any instrument, every string may be tuned to the correct tone by matching the string with a pitch benchmark. Piano tuning presents peculiar issues, with a sum of 88 keys and strings, a professional generally handles the job which requires specialty tools.

The tempered scale forms the foundation for modern music and particularly when tuning pianos. The first key is tuned to a tuning fork, the rest of the process involves extending the lower and upper octaves. This refers to sharpening the octaves from an equal scale's notes. The explanation for this has to do with what's known as the harmonics in the strings. This phenomenon is crucial in the tuning process as we will discuss in more detail. Extending of the octaves and then matching these octaves to the rest of the keys on the piano and until a variety of intervals in the scale entails the history of music and an understanding about the physics of sound. The Phenomena of Sound and also the Harmonic Series - Sound is the consequence of periodic fluctuations in air pressure propagating throughout the atmosphere. Setting the spacing between the notes is a process is known as setting the character.

When these pressure fluctuations pass from the eardrum, we here sound. Differences in the rate of fluctuation are perceived as differences in pitch. Differences in the form of pressure wave-forms are perceived as differences in tone or timbre. When these pressure fluctuations strike a mic, they're converted to electrical signals, and also an oscilloscope can then be utilized to observe how these pressure wave-forms vary as a function of time. A pure tone, like from a flute, will look like a nearly ideal sine wave. Most musical wave-forms are more complicated than this. A tone produced from a reed instrument might seem to be shaped comparable to an sq wave.

You can imagine how a reed periodically closing and opening would produce such a waveform. The waveform of a bowed violin might resemble a saw-tooth. This results from the way wherein the string is grasped and released periodically by the bow. All these tones can be of the exact same fundamental frequency, but the ear and brain perceive unique differences in timbre. The harmonic series is an essential concept in the study of sound.